llvm-svn: 185189

llvm-svn: 185188

llvm-svn: 185187

should expand ATOMIC_CMP_SWAP nodes the same way that it does for ATOMIC_SWAP.

Since ATOMIC_LOADs on some targets (e.g. older ARM variants) get legalized to
ATOMIC_CMP_SWAPs, the missing case had been causing i64 atomic loads to crash
during isel.

<rdar://problem/14074644>

llvm-svn: 185186

- Use static functions instead of anonymous namespace.
- Appease the Doxygen lobby.
- Use 0-based induction variable.

llvm-svn: 185185

Allow a BlockFrequency to be divided by a non-zero BranchProbability
with saturating arithmetic. This will be used to compute the frequency
of a loop header given the probability of leaving the loop.

Our long division algorithm already saturates on overflow, so that was a
freebie.

llvm-svn: 185184

llvm-svn: 185180

This makes it more consistent with the ZeroOrNegativeOneBooleanContent flag

llvm-svn: 185179

llvm-svn: 185178

Fix ABI handling for function
returning bool -- use st.param.b32 to return the value
and use ld.param.b32 in caller to load the return value.

llvm-svn: 185177

llvm-svn: 185176

[NVPTX] Clean up comparison/select/convert patterns and factor out PTX instructions from their patterns

Test case is no breakage

llvm-svn: 185175

[NVPTX] Remove i8 register class.  PTX support for i8 (.b8, .u8, .s8) is rather poor and we're better off just ignoring it and letting LLVM expand all i8 ops out to i16.

llvm-svn: 185174

llvm-svn: 185173

llvm-svn: 185172

llvm-svn: 185171

This patch assigns paired GPRs  for inline asm with
64-bit data on ARM. It's enabled for both ARM and Thumb to support modifiers
like %H, %Q, %R.

llvm-svn: 185169

llvm-svn: 185168

sys::fs::unique_file will now loop infinitely if provided with a file name
without '%' characters and the input file already exists. As a result, bugpoint
cannot use a fixed file name for the execution output (including the reference
output).

llvm-svn: 185166

I used the class to safely reset the state of the builder's debug location.  I
think I have caught all places where we need to set the debug location to a new
one. Therefore, we can replace the class by a function that just sets the debug
location.

llvm-svn: 185165

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 185162

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 185161

v2:
  - Remove functions left over from a previous rebase.

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 185160

We were generating intrinsics for NEON fixed-point conversions that didn't
exist (e.g. float -> i16). There are two cases to consider:
  + iN is smaller than float. In this case we can do the conversion but need an
    extend or truncate as well.
  + iN is larger than float. In this case using the NEON conversion would be
    incorrect so we don't perform any combining.

llvm-svn: 185158

The mapping between SRS pseudo-instructions and SRS native instructions was incorrect, the correct mapping is:

srsfa -> srsib
srsea -> srsia
srsfd -> srsdb
srsed -> srsda

This fixes <rdar://problem/14214734>.

llvm-svn: 185155

llvm-svn: 185154

llvm-svn: 185151

llvm-svn: 185143

llvm-svn: 185141

llvm-svn: 185139

llvm-svn: 185137

llvm-svn: 185136

No functionality change.
It should suffice to check the type of a debug info metadata, instead of
calling Verify. For cases where we know the type of a DI metadata, use
assert.

Also update testing cases to make them conform to the format of DI classes.

llvm-svn: 185135

llvm-svn: 185131

* Don't try to create parent directories in unique_file. It had two problem:
   * It violates the contract that it is atomic. If the directory creation
     success and the file creation fails, we would return an error but the
     file system was modified.
   * When creating a temporary file clang would have to first check if the
     parent directory existed or not to avoid creating one when it was not
     supposed to.

* More efficient implementations of createUniqueDirectory and the unique_file
  that produces only the file name. Now all 3 just call into a static
  function passing what they want (name, file or directory).

Clang also has to be updated, so tests might fail if a bot picks up this commit
and not the corresponding clang one.

llvm-svn: 185126

llvm-svn: 185124

llvm-svn: 185123

radar://14169017

llvm-svn: 185122

llvm-svn: 185121

llvm-svn: 185120